FI956250A - Antenna - Google Patents

Antenna Download PDF

Info

Publication number
FI956250A
FI956250A FI956250A FI956250A FI956250A FI 956250 A FI956250 A FI 956250A FI 956250 A FI956250 A FI 956250A FI 956250 A FI956250 A FI 956250A FI 956250 A FI956250 A FI 956250A
Authority
FI
Finland
Prior art keywords
antenna
Prior art date
Application number
FI956250A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI956250A0 (en
Inventor
Gerhard Greving
Harald Mueller
Original Assignee
Sel Alcatel Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sel Alcatel Ag filed Critical Sel Alcatel Ag
Publication of FI956250A0 publication Critical patent/FI956250A0/en
Publication of FI956250A publication Critical patent/FI956250A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H01Q9/285—Planar dipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/28—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements
    • H01Q19/30—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements the primary active element being centre-fed and substantially straight, e.g. Yagi antenna
FI956250A 1994-12-23 1995-12-22 Antenna FI956250A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19944446128 DE4446128A1 (en) 1994-12-23 1994-12-23 antenna

Publications (2)

Publication Number Publication Date
FI956250A0 FI956250A0 (en) 1995-12-22
FI956250A true FI956250A (en) 1996-06-24

Family

ID=6536799

Family Applications (1)

Application Number Title Priority Date Filing Date
FI956250A FI956250A (en) 1994-12-23 1995-12-22 Antenna

Country Status (3)

Country Link
EP (1) EP0718912A1 (en)
DE (1) DE4446128A1 (en)
FI (1) FI956250A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6278413B1 (en) * 1999-03-29 2001-08-21 Intermec Ip Corporation Antenna structure for wireless communications device, such as RFID tag
DE10105981A1 (en) * 2001-02-09 2002-09-12 Siemens Ag Industrial plant or building radio system has tuned radio signal element serving as reflector for indirect path or director for direct signal path
US7205953B2 (en) 2003-09-12 2007-04-17 Symbol Technologies, Inc. Directional antenna array
US7423606B2 (en) 2004-09-30 2008-09-09 Symbol Technologies, Inc. Multi-frequency RFID apparatus and methods of reading RFID tags
US7893813B2 (en) 2005-07-28 2011-02-22 Intermec Ip Corp. Automatic data collection device, method and article
EP1938483B1 (en) 2005-09-21 2015-07-08 Intermec IP Corp. Stochastic communication protocol method and system for radio frequency identification (rfid) tags based on coalition formation, such as for tag-to-tag communication
US8120461B2 (en) 2006-04-03 2012-02-21 Intermec Ip Corp. Automatic data collection device, method and article
US8002173B2 (en) 2006-07-11 2011-08-23 Intermec Ip Corp. Automatic data collection device, method and article
US7579955B2 (en) 2006-08-11 2009-08-25 Intermec Ip Corp. Device and method for selective backscattering of wireless communications signals

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB672034A (en) * 1950-01-21 1952-05-14 Nat Res Dev Aerial systems
GB939790A (en) * 1960-12-16 1963-10-16 Marconi Wireless Telegraph Co Improvements in or relating to aerial systems
GB982155A (en) * 1962-08-21 1965-02-03 Marconi Co Ltd Improvements in or relating to aerial systems
NO124503B (en) * 1967-06-08 1972-04-24 Sintef
DE2138384C2 (en) * 1971-07-31 1982-10-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Yagi aerial in printed circuit construction - has complete aerial formed in one mfg. operation
DE8304525U1 (en) * 1983-02-18 1983-09-15 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt MICROWAVE ANTENNA FOR LINE CONNECTIONS, IN PARTICULAR IN THE MILLIMETER WAVE AREA
US4644363A (en) * 1985-05-14 1987-02-17 The United States Of America As Represented By The Secretary Of The Army Integrated dual beam line scanning antenna and negative resistance diode oscillator
US4812855A (en) * 1985-09-30 1989-03-14 The Boeing Company Dipole antenna with parasitic elements
US5008681A (en) * 1989-04-03 1991-04-16 Raytheon Company Microstrip antenna with parasitic elements
FR2667730B1 (en) * 1990-10-03 1993-07-02 Bretagne Ctre Rgl Tra ANTENNA.
JP2614789B2 (en) * 1991-03-28 1997-05-28 太洋無線株式会社 Yagi antenna
US5293172A (en) * 1992-09-28 1994-03-08 The Boeing Company Reconfiguration of passive elements in an array antenna for controlling antenna performance
JPH111006A (en) * 1997-06-12 1999-01-06 Canon Inc Recording apparatus and recording method

Also Published As

Publication number Publication date
FI956250A0 (en) 1995-12-22
DE4446128A1 (en) 1996-06-27
EP0718912A1 (en) 1996-06-26

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